Today another look, everything changed. Previously, I had deleted all the lights from my echo app, and it only discovered the ones from Hue emulation immediately. But I also have myOpenHab running. I played around with the tagging to see whether it would help with HueEmulation, but after giving up, I changed things back to “Lighting”
Today I wanted to try out a workaround to control color by myOH and additionally have switching capability via HueEmulation. Thus I started the alexa app, and the lights were also there from myOH. Then I looked at my HueEmulation lights, and lo an behold, I could now control color in the alexa app. And alexa would now take color voice commands!
I really don’t know what changed, other than that alexa seemingly added the myOH lights overnight without me asking for it.
Then I checked the Hue Essentials app, and found color control at a place where I didn’t look before. Yesterday I tried tapping on the slider. Today I tapped the name and got a color dialog. So maybe I spoke prematurely that Hue Essentials didn’t recognize the lights as color lights. Maybe it just was alexa after all.
As a test, I removed a now correctly recognized light. On rediscovery, it was now discovered correctly in both the HueEmulation and myOH versions. I am absolutely sure yesterday I had no color capability: “not supported” on voice command, no color dialog in the alexa app, and no color capability in the lamp details in the alexa app. Today it is there, and all three spots recognize color where there was none yesterday. I don’t have any reasonable explanation for this. Maybe there was some kind of cache in the Echo devices, containing settings from a time when the emulation didn’t support color, which was updated over night?